#include <iostream>
#include <algorithm>
#include <cstring>
#include <string>
#include <map>
#include <vector>

using namespace std;
using LL = long long;
const int N = 1e5 + 10, INF = 1e9;

struct Node{
    int s[2], v, p, cnt, size;
};

int main(){
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
    string s;
    s.length();
    


    return 0;
}